#include <iostream>using namespace std;int main( ){    int a,b,c;   for (a=1; a<20; a++)      for (b=1; b<20; b++)         for (c=1; c<=20; c++)          if (a*a+b*b==c*c)                            printf("a=%d,b=%d,c=%d\n",a,b,c);      system("pause");    return 1;}     

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#include <iostream>using namespace std;int main( ){    int a,b,c;   for (a=1; a<20; a++)      for (b=1; b<20; b++)         for (c=1; c<=20; c++)          if (a*a+b*b==c*c)                            printf("a=%d,b=%d,c=%d\n",a,b,c);      system("pause");    return 1;}     

 #include <iostream>
using namespace std;
int main( )
{ 

  int a,b,c;
    for (a=1; a<20; a++)
    for (b=a; b<20; b++)
      for (c=b; c<=20; c++)

   if (a*a+b*b==c*c) 
                            cout<<"a="<<a<<"  b="<<b<<"  c="<<c<<endl;
   system("pause"); return 1;

********************************************************************************

#include <iostream>

#include<math.h>

using namespace std; int main( )

{   int a,b,c;     

   for (a=1; a<20; a++)    

for (b=a+1; b<20; b++)   

   {          c=sqrt(a*a+b*b);

 if (a*a+b*b==c*c)

cout<<"a="<<a<<" b="<<b<<" c="<<c<<endl;

}

  return 1;

}

} 

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